The first order rate constant for the decomposition of a certain hormone in water at 25 degrees C is 3.42 x 10-4 day-1.  a)If a 0.0200 M solution of the hormone is stored at 25 degrees C for 2 months, what will its concentration be at the end of that period? b)How long will it take for the ocncentration of the oslution to drop from 0.0200 M to 0.00350 M? c)What is the half-life of the hormone?

The reaction CH;Br(aq) + OH (aq) - CH3OH(aq) + Br (aq) is first order with respect to each reactant. At a certain temperature, when the concentration of CH3Br is 0.565 M and the

How long will it take for the concentration of A to decrease from 1.25 M to 0.401 for the second order reaction A → Products? (k = 1.52 Mʻmin")

23 II. An experiment followed the decomposition. of nitregen dioxide to nitregen monoxide & oxygen gas. Given the following data, what order is the reaction for nitrogen dioxide? Given an initial concentration of nitrogen dioxide of 0.0400 M, what's the concentration of this reactant after a half hour? show all grapers & calcs to determine answers. (sec) Time |[NO₂] (M) 0.0 50.0 100.0 200.0 300.0 0.01000 0.00787 0.00649 0.00481 0.00380 M G 2 XX 6.5 Hoa X019 201 2(x) = 2 (1.86) (3 (9)

The activation energy for a certain reaction is 308 kJ/mol. The rate constant at 300K is 0.0134s^-1. At what temperature will the rate (and the rate constant be 100 times greater?

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